From 736baef4472d00574089f295bc759ac002b9558c Mon Sep 17 00:00:00 2001 From: Joerg Roedel Date: Fri, 30 Mar 2012 11:47:00 -0700 Subject: iommu/vt-d: Make intr-remapping initialization generic This patch introduces irq_remap_ops to hold implementation specific function pointer to handle interrupt remapping. As the first part the initialization functions for VT-d are converted to these ops. Signed-off-by: Joerg Roedel Acked-by: Yinghai Lu Cc: David Woodhouse Cc: Alex Williamson Signed-off-by: Suresh Siddha Signed-off-by: Joerg Roedel --- drivers/iommu/intr_remapping.h | 46 ++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 46 insertions(+) create mode 100644 drivers/iommu/intr_remapping.h (limited to 'drivers/iommu/intr_remapping.h') diff --git a/drivers/iommu/intr_remapping.h b/drivers/iommu/intr_remapping.h new file mode 100644 index 000000000000..d6df732e001f --- /dev/null +++ b/drivers/iommu/intr_remapping.h @@ -0,0 +1,46 @@ +/* + * Copyright (C) 2012 Advanced Micro Devices, Inc. + * Author: Joerg Roedel + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 as published + * by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * + * This header file contains stuff that is shared between different interrupt + * remapping drivers but with no need to be visible outside of the IOMMU layer. + */ + +#ifndef __INTR_REMAPPING_H +#define __INTR_REMAPPING_H + +#ifdef CONFIG_IRQ_REMAP + +extern int disable_intremap; +extern int disable_sourceid_checking; +extern int no_x2apic_optout; + +struct irq_remap_ops { + /* Check whether Interrupt Remapping is supported */ + int (*supported)(void); + + /* Initializes hardware and makes it ready for remapping interrupts */ + int (*hardware_init)(void); + + /* Enables the remapping hardware */ + int (*hardware_enable)(void); +}; + +extern struct irq_remap_ops intel_irq_remap_ops; + +#endif /* CONFIG_IRQ_REMAP */ + +#endif /* __INTR_REMAPPING_H */ -- cgit v1.2.2